Improvement in self-loading and dumping carts



'JEME Blf nunnnnr, or HERMON, NEW YORK.

`|MPRovEMENT IN sELF-LoADINeAND nuMPlNcs. cARTs.

Specification forming part of Letters Patent No. 115,321, dated May 30,1871.

` l "To all whom it may concern; Y M `Be `it known that I, JEROME B.HULBERT, of Hermon, in the county ofSt.'l Lawrence and z] State of NewYork, have invented a new and r `ll useful Improvement `in l Self-Loading and E ."Dumping Cart; and I do hereby declare that `thefollowing is afull, clear, and exact descrips tion thereof, which `willenable others uskilled in the art to make and use the same, reference 1being had to the accompanying drawing forming part of this specication.-

\ `The ob'ect of this invention is to provide convenien `means `forremoving earth and gravelin the .construction of embankments,

" and in excavating, andfor` all purposes for whichthe machine maybeadapted and it.

.s l `fconsists ina box "cr scraper and frame-work .1 and attachmentthereto, supported on wheels,

" thescraper being made to load and dump itself as thejwheels moveforward, the arrangel ment and operation beingas hereinafter more fullydescribed and specified.

. Intheaccompanyingdrawing, Figure 1 repl` resents a side view with onewheel olif', showing the box or scraper as being loaded. Fig. 2 is ,l avertical `section of Fig. 4, taken on the line @showing the scraper lledand as being l. transported. or moved. l Fig. 3 is a side view, showingthe scrapergreversed and the earth w dumped. Fig. 4 is a verticalsection taken on .thelineyyofFig 1.`

\ l Similar letters of reference indicate correspondingparts. t ..1

` "Ais the scraper or boxfof the cart. B is a t are the axles `lorarmsofthe wheels sups The lower portions ofthe uprights E E (which uprightsare rigidly attached to` the shafts) trunnions, `firmlyattached to thesides of the :l scraper,from whichthe scraper is suspended l and onwhichI it turns.` G G are links which 3? slots receive theupper endsofthe links. The 1 f outer ends of: these `camdevers .are connected 11platf'orm, supported on the shafts C C. D D

" ported beneath the shafts by the uprights E E.4

l1; `are slotted, as seen in the drawing. F Fare take hold of thetrunnions between the sides l z Fig. .4. HHare `slotted cam-levers, theform together by the bar I, by means of which the levers and cams areoperated simultaneously by tliedriver, whostands on the front part ofthe platform. J is a spring-catch on the cross-piece K, (which connectsthe rear ends of the shafts together,) which catch supports the rear ofthe scraper or balances it on the trunnions. scraper, which engages withthe catch. M is a lever (one or more) inserted into a socket or sockets,N, on the rear end of the scraper, by means of which the scraper may beguided or kept steady by an attendant in loading and carrying. Theselevers are readily slipped out when the scraper is to be reversed ordumped. l

When the scraper is to be loaded the barI s is raised, as seen in Fig.1, which actionl carries the trunnions down the cam-slots in the leversH H and lowers the edge of the scraper.` Aforward movement loads thescraper. When so loaded the bar Iis brought down, as seen in Fig. 2. Therear of the scraper now rests upon the catch J, and may be supported andkept steady by means of the lever or levers M. Inrthis condition thescraper with its load may be transported any required distance.

When it is desired to dump the load the bar I is again raised, whichlowers the edge or blade of the scraper so that it will catch in theground; but as the forward motion of the cart is, continued the effectis to reverse the scraper or turn it over and dump the load, as seen inFig. 3.

The earth leaves the scraper as the latter is moving forward, it isconsequently leveled ofi' as it is deposited.

l In this example of my invention, it will be seen that the apparatus isadapted to horsepower; but I do not confine myself to any particularkindv of motive power. It maybe operated by a locomotive or traction`steamengine adapted to common roads, the latter of which I design touse.

Having thus described myinvention, I claim as new and desire to secureby Letters Patent 1. The trunnions F F, in combination with L is a lugon the back of the 7 l the cam-levers H H, arranged to operate sub- Theabove specification of my invention substantially as and forthe purposedescribed. signed by me this 21st day of February, 1871. 2. The slottedupright frame E E, oam-lev- JEROME B. HULBMBT.

ers H H, bar I, platform B, and. spring-catch v J in combination withthe box or scraper A, Witnesses:

and with a cart arranged to operate substan- GEO. W. MABEE,

tiaily as and for the purposes described. T. B. MOSHER.

